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Finding the Fourth Proportional to 117,663.68, 176,457.72 and 38,756.72

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Solution

The fourth proportional to 117,663.68, 176,457.72 and 38,756.72 is: 58,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,663.68 : 176,457.72 = 38,756.72 : x
  2. Step 2: Convert to fraction form
    117,663.68/176,457.72 = 38,756.72/x
  3. Step 3: Cross multiply
    117,663.68x = 176,457.72 × 38,756.72
  4. Step 4: Simplify right side
    117,663.68x = 6,838,922,445.88
  5. Step 5: Solve for x
    x = 6,838,922,445.88/117,663.68
  6. Step 6: Final answer
    x = 58,122.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.